CN111151918B - E316H type stainless steel submerged arc welding material for manufacturing fast neutron reactor equipment and preparation method thereof - Google Patents
E316H type stainless steel submerged arc welding material for manufacturing fast neutron reactor equipment and preparation method thereof Download PDFInfo
- Publication number
- CN111151918B CN111151918B CN201911372874.9A CN201911372874A CN111151918B CN 111151918 B CN111151918 B CN 111151918B CN 201911372874 A CN201911372874 A CN 201911372874A CN 111151918 B CN111151918 B CN 111151918B
- Authority
- CN
- China
- Prior art keywords
- percent
- equal
- less
- welding
- stainless steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
- B23K35/3086—Fe as the principal constituent with Cr as next major constituent containing Ni or Mn
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
Abstract
The invention discloses an E316H type stainless steel submerged arc welding material for manufacturing fast neutron reactor equipment and a preparation method thereof, wherein the welding wire comprises the following elements in percentage by mass: c: 0.05 to 0.07%, Si: 0.10-0.30%, Mn: 1.25-2.0%, P is less than or equal to 0.005%, S is less than or equal to 0.005%, Cr: 18.0% -20.50%, Ni: 10.0 to 12.0 percent of Mo, 2.20 percent or 2.25 percent of Mo, less than or equal to 0.020 percent of Cu, less than or equal to 0.010 percent of Co, less than or equal to 0.0005 percent of B, less than or equal to 0.01 percent of Nb, less than or equal to 0.005 percent of As, less than or equal to 0.002 percent of Sn, less than or equal to 0.001 percent of Sb, and the balance of Fe. The welding flux comprises the following components in percentage by mass: magnesium oxide: 8-15%, aluminum oxide: 20-40%, calcium fluoride: 30-40%, marble: 5-10%, ferrosilicon (Si-Fe): 2-4%, chromium metal: 2-4%, the mass percent of O element and H element of the deposited metal is 0.047 and 0.0008 by matching the welding wire and the welding flux, the deposited metal has high room-temperature and high-temperature strength and good impact toughness, and the contents of [ H ] and [ O ] are low, so that the welding of 316H austenitic stainless steel for fast neutron reactors can be met, and the welding method can also be used for welding other 300 series austenitic stainless steels.
Description
Technical Field
The invention relates to the field of welding materials, and relates to an E316H type austenitic stainless steel submerged arc welding wire and a welding flux and a preparation method thereof.
Background
The fast neutron reactor can improve the utilization rate of natural uranium resources from about 1 percent of a pressurized water reactor widely applied in a nuclear power station to more than 60 percent; the radioactive wastes generated by the pressurized water reactor and having long service life can be transmuted, and the minimization of the radioactive wastes is realized. The fast neutron reactor is a fourth generation nuclear reactor type, can realize the recycling of fuel of the fast reactor and the pressurized water reactor, and is a leading product of future nuclear power development. The development and popularization of the fast reactor technology have great significance for promoting the nuclear power sustainable development and the establishment of an advanced fuel circulation system in China, and play a key role in the development prospect of the nuclear power in China.
The total weight of the prior manufactured exemplary fast reactor container and the cock device is about 3500 tons, the volume is large, the structure is complex, the requirements on performance index and dimensional precision are high, the main material is austenitic stainless steel 316H, and the requirements on welding process and welding quality are very high. The 316H austenitic stainless steel for manufacturing the fast reactor container, the reactor internals and the cocks is used for bearing and bearing the components, the welding amount is large, the corrosion resistance of welding seams is required, the requirements on room temperature strength, high temperature durability and the like are extremely high, meanwhile, strict requirements are provided for H and O in welding seam deposited metal, and welding rods which completely meet the conditions are not available at home and abroad at present.
Disclosure of Invention
The invention provides an E316H type austenitic stainless steel submerged arc welding wire and a welding flux thereof, which are used for welding 316H austenitic stainless steel for manufacturing a fast reactor container, an in-reactor component and a cock. The submerged arc welding wire has good welding manufacturability by matching with a welding flux, and the [ H ] and [ O ] in the deposited metal of the welding rod have lower content; the deposited metal of the welding rod has higher room temperature strength, high temperature durability, various impact properties at room temperature and good intergranular corrosion resistance.
The technical scheme adopted by the invention is that the welding wire is an E316H type stainless steel submerged arc welding wire for manufacturing fast neutron reactor equipment, and the welding wire comprises the following elements in percentage by mass: c: 0.05 to 0.07 percent of Si: 0.10-0.30%, Mn: 1.25-2.0%, P is less than or equal to 0.005%, S is less than or equal to 0.005%, Cr: 18.0% -20.50%, Ni: 10.0-12.0 percent of Mo, 2.20 percent or 2.25 percent of Mo, less than or equal to 0.020 percent of Cu, less than or equal to 0.010 percent of Co, less than or equal to 0.0005 percent of B, less than or equal to 0.01 percent of Nb, less than or equal to 0.005 percent of As, less than or equal to 0.002 percent of Sn, less than or equal to 0.001 percent of Sb, and the balance of Fe, the E316H type stainless steel submerged arc welding flux for manufacturing the fast neutron reactor equipment adopts high-purity marble and magnesia alumina As slagging agents and a large amount of calcium fluoride As dehydrogenating agents, and the alloy elements are complemented by adding ferrosilicon and chromium metal, wherein the mass percent of each component is As follows: magnesium oxide: 8-15%, aluminum oxide: 20-40%, calcium fluoride: 30-40%, marble: 5-10%, ferrosilicon (Si-Fe): 2-4%, chromium metal: 2 to 4 percent of the total weight of the steel,
the mass percent of O element and the mass percent of H element of deposited metal are 0.047 and 0.0008 respectively, or the mass percent of O element and the mass percent of H element of deposited metal are 0.053 and 0.0007 respectively.
A preparation method of a submerged arc welding flux comprises the following steps of weighing solid components in percentage by mass: 8-15% of magnesium oxide, 30-40% of calcium fluoride, 20-40% of aluminum oxide, 5-10% of marble, 2-4% of ferrosilicon (Si-Fe) and 2-4% of metal chromium; and uniformly mixing the solid components, adding a liquid component with the solid component content of 19-22%, wherein the liquid component is potassium sodium silicate, uniformly mixing, baking at the low temperature of 100-150 ℃ for 30 minutes, and sintering at the high temperature of 650-800 ℃ for forming.
The invention has the beneficial effects that: the content of C and Si in the welding wire is controlled to be low, and the welding wire is easy to prepare; the welding wire is reasonably matched with Mn, Cr and Mn elements, the content of impurity elements such as P, S and the like is extremely low, and deposited metal with high purity and proper content of O H can be obtained by matching the welding flux disclosed by the invention for welding. The austenitic stainless steel submerged arc welding flux has the advantages that the content of each component is carefully designed, the alkalinity of the flux is higher, pure deposited metal can be obtained by matching with stainless steel welding wires for welding, the manufacturability of the flux is good, the slag is easy to remove in welding, and no slag is adhered. The invention relates to a flux developed by matching an E316H type austenitic stainless steel submerged-arc welding wire, which can be directly applied to welding of 316H austenitic stainless steel for manufacturing a fast reactor container, an in-reactor component and a cock.
Detailed Description
The invention is further explained, and relates to an E316H type submerged arc welding material, which comprises a core wire and a welding flux, wherein the core wire comprises the following elements in percentage by mass: 0.05 to 0.07 percent of C, 0.10 to 0.30 percent of Si, 1.25 to 2.0 percent of Mn, less than or equal to 0.005 percent of P, less than or equal to 0.005 percent of S, 18.0 to 20.50 percent of Cr18, 10.0 to 12.0 percent of Ni, 2.20 percent or 2.25 percent of Mo, less than or equal to 0.020 percent of Cu, less than or equal to 0.010 percent of Co, less than or equal to 0.0005 percent of B, less than or equal to 0.01 percent of Nb, less than or equal to 0.005 percent of As, less than or equal to 0.002 percent of Sn, less than or equal to 0.001 percent of Sb, and the balance of Fe and inevitable impurities.
The design basis is as follows: carbon: carbon is an effective strengthening element and is the most economic strengthening element, however, carbon has adverse effects on toughness, weldability, especially intergranular corrosion resistance, and the like, and the carbon content cannot be too high and is controlled to be 0.05-0.07 percent
Silicon: the silicon is a deoxidizing element which can effectively deoxidize, but the strength and the hardness of a welding line are increased, and the weldability is deteriorated, so that the silicon cannot be too high and is controlled to be 0.1-0.30%.
Manganese: is a deoxidizer and also a reinforcer, but the strength of the welding wire is increased due to the excessively high content of manganese in the welding core, so that the drawing preparation of the welding wire is not facilitated, and the content is controlled to be 1.25-2.0%.
Chromium: the corrosion-resistant steel is a main corrosion-resistant element, but the reheating crack sensitivity of a welding seam is increased due to the overhigh chromium content, and in a comprehensive test, the ranges of the selected chromium are as follows: 18.00 to 20.00 percent.
Nickel: the corrosion-resistant nickel is a main corrosion-resistant element, the toughness and the plasticity of a welding line are improved, but the cost of the nickel element is higher, and the range of the nickel selected by the invention is as follows: 10.00-12.00%.
Sulfur, phosphorus: the presence of sulfur and phosphorus in steel is a harmful element. The sulfur is easy to form MnS and FeS in the steel, the impact toughness of the steel is reduced, the welding performance of the steel is influenced, and the hot cracking tendency of a welding seam is increased due to too high sulfur and phosphorus. In the invention, the contents of sulfur and phosphorus are both limited to be less than or equal to 0.005 percent.
The invention relates to a high-alkalinity submerged-arc welding sintered flux, which adopts high-quality and high-purity marble and magnesia alumina as slagging agents and a large amount of calcium fluoride as dehydrogenation agents, and supplements alloy elements by adding ferrosilicon and metal chromium, wherein the weight percentages of the components are as follows: 8-15% of magnesium oxide, 20-40% of aluminum oxide, 30-40% of calcium fluoride, 5-10% of marble, 2-4% of silicon iron (Si-Fe) and 2-4% of metal chromium.
The invention relates to a preparation method of a high-alkalinity submerged-arc welding flux, which comprises the following steps: weighing the following solid components in percentage by weight: 8-15% of magnesium oxide, 30-40% of calcium fluoride, 20-40% of aluminum oxide, 5-10% of marble, 2-4% of ferrosilicon (Si-Fe) and 2-4% of metal chromium; and uniformly mixing the solid components, adding a liquid component with the solid component content of 19-22%, wherein the liquid component is potassium sodium silicate, uniformly mixing, baking at the low temperature of 100-150 ℃ for 30 minutes, and sintering at the high temperature of 650-800 ℃ for forming.
The specific embodiment is as follows:
(1) weighing raw materials of the welding flux according to the percentage content in the table 1, and performing dry mixing at normal temperature;
(2) sieving the dry-mixed materials by using a 40-mesh sieve to remove impurities in the materials;
(3) and (3) weighing the sieved materials again, wherein the weighed materials are as follows: each single dry mixed material is 50 plus or minus 0.5Kg in weight, then 10Kg of water glass is added, and the materials are uniformly humidified at normal temperature;
(4) adding water glass uniformly-conditioned materials, baking at the temperature of 150 +/-5 ℃, and sintering at the high temperature of 650-800 ℃ for forming;
(5) sieving the material formed by high-temperature sintering, and selecting particles larger than 10 meshes and smaller than 80 meshes as finished products for packaging.
Table 1 examples flux raw material sets
And (3) matching the welding flux with two batches of welding wires in the table 2 for welding, detecting the mechanical properties of the welding line according to the welding technical requirements for manufacturing the fast reactor container, wherein the mechanical properties of the deposited metal of the test plate are shown in the tables 3, 4, 5 and 6.
TABLE 2 examples welding wire and deposited metal compositions
In the process of welding the test plate, the welding process of the flux prepared in each example is stable, the hardness of the slag shell is moderate, the slag shell automatically falls off at a higher temperature, and the slag shell is broken short slag and is easy to remove from the groove.
TABLE 3 tensile Properties of deposited metals of examples
TABLE 4 impact properties of deposited metals of examples
TABLE 5 intergranular corrosion resistance of deposited metals of examples
TABLE 6 high temperature durability of deposited metal of examples
Claims (1)
1. The E316H stainless steel submerged arc welding material for manufacturing the fast neutron reactor equipment comprises a welding wire and a welding flux, and is characterized in that: the welding wire comprises the following components in percentage by mass: c: 0.05 to 0.07 percent of Si: 0.10-0.30%, Mn: 1.25-2.0%, P is less than or equal to 0.005%, S is less than or equal to 0.005%, Cr: 18.0% -20.50%, Ni: 10.0-12.0 percent of Mo, 2.20 percent or 2.25 percent of Mo, less than or equal to 0.020 percent of Cu, less than or equal to 0.010 percent of Co, less than or equal to 0.0005 percent of B, less than or equal to 0.01 percent of Nb, less than or equal to 0.005 percent of As, less than or equal to 0.002 percent of Sn, less than or equal to 0.001 percent of Sb, and the balance of Fe, wherein the mass percent of each component in the welding flux is As follows: magnesium oxide: 8-15%, aluminum oxide: 20-40%, calcium fluoride: 30-40%, marble: 5-10%, ferrosilicon (Si-Fe): 2-4%, chromium metal: 2-4%, the mass percent of O element and the mass percent of H element of the deposited metal are 0.047 and 0.0008 respectively, or the mass percent of O element and the mass percent of H element of the deposited metal are 0.053 and 0.0007 respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911372874.9A CN111151918B (en) | 2019-12-27 | 2019-12-27 | E316H type stainless steel submerged arc welding material for manufacturing fast neutron reactor equipment and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911372874.9A CN111151918B (en) | 2019-12-27 | 2019-12-27 | E316H type stainless steel submerged arc welding material for manufacturing fast neutron reactor equipment and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111151918A CN111151918A (en) | 2020-05-15 |
| CN111151918B true CN111151918B (en) | 2022-07-01 |
Family
ID=70558408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911372874.9A Active CN111151918B (en) | 2019-12-27 | 2019-12-27 | E316H type stainless steel submerged arc welding material for manufacturing fast neutron reactor equipment and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111151918B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605558A (en) * | 2020-12-26 | 2021-04-06 | 江苏新核合金科技有限公司 | 00Cr19Ni14Si5 welding wire and preparation method thereof |
| CN115091077B (en) * | 2022-08-25 | 2022-11-22 | 中国科学院金属研究所 | Austenitic stainless steel welding wire resistant to liquid lead and bismuth corrosion |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4465066B2 (en) * | 1999-10-18 | 2010-05-19 | 日本冶金工業株式会社 | Welding materials for ferrite and austenitic duplex stainless steels |
| CN103394822A (en) * | 2013-07-19 | 2013-11-20 | 河海大学常州校区 | Sintered flux for submerged-arc welding for nickel-based alloy |
| CN104722956A (en) * | 2015-03-17 | 2015-06-24 | 北京金威焊材有限公司 | Sintered flux for nickel-based band electrode submerged-arc welding |
| CN104722954A (en) * | 2015-03-24 | 2015-06-24 | 天津重型装备工程研究有限公司 | Automatic submerged arc welding wire used in nuclear grade strong radiation area |
| CN107252995A (en) * | 2017-06-16 | 2017-10-17 | 上海大西洋焊接材料有限责任公司 | A kind of stainless steel electrode for the cold fast breeder reactor welding of sodium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521946A (en) * | 2013-11-02 | 2014-01-22 | 丹阳市华龙特钢有限公司 | High-strength austenitic stainless steel submerged-arc welding wire |
-
2019
- 2019-12-27 CN CN201911372874.9A patent/CN111151918B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4465066B2 (en) * | 1999-10-18 | 2010-05-19 | 日本冶金工業株式会社 | Welding materials for ferrite and austenitic duplex stainless steels |
| CN103394822A (en) * | 2013-07-19 | 2013-11-20 | 河海大学常州校区 | Sintered flux for submerged-arc welding for nickel-based alloy |
| CN104722956A (en) * | 2015-03-17 | 2015-06-24 | 北京金威焊材有限公司 | Sintered flux for nickel-based band electrode submerged-arc welding |
| CN104722954A (en) * | 2015-03-24 | 2015-06-24 | 天津重型装备工程研究有限公司 | Automatic submerged arc welding wire used in nuclear grade strong radiation area |
| CN107252995A (en) * | 2017-06-16 | 2017-10-17 | 上海大西洋焊接材料有限责任公司 | A kind of stainless steel electrode for the cold fast breeder reactor welding of sodium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111151918A (en) | 2020-05-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107931888B (en) | High-strength steel welding rod for hydroelectric engineering and preparation method thereof | |
| CN102773631B (en) | Core wire and coating of nuclear-grade nickel base covered electrode of basic slag system, covered electrode and preparation methods | |
| CN102392195A (en) | High-strength high-toughness nuclear power pressure vessel forging steel and its manufacturing method | |
| CN103071946B (en) | Supercritical ferrite and heat-resistant steel matched electrode and production method thereof | |
| CN103706963B (en) | A kind of stainless steel welding electrode for three generations's main nuclear power pipeline and production method thereof | |
| CN111151918B (en) | E316H type stainless steel submerged arc welding material for manufacturing fast neutron reactor equipment and preparation method thereof | |
| CN106399846A (en) | FeCrAl alloy material for preparing Nuclear reactor fuel cladding material | |
| CN108907494B (en) | Nuclear power AG728 steel welding rod and preparation method thereof | |
| CN103737199A (en) | Ultra supercritical heat-resistant steel welding rod and production method thereof | |
| CN110396624B (en) | Boron-rich nickel-tungsten-based alloy material for nuclear shielding and preparation method thereof | |
| CN103480975A (en) | Manufacturing method of nuclear-grade austenitic stainless steel welding wire | |
| CN102605213A (en) | Germanium-containing Zr-Sn-Nb alloy for fuel cladding of nuclear power station | |
| CN103898366A (en) | Zirconium-based alloy for nuclear reactor fuel assembly | |
| AU2020102032A4 (en) | Deposited metal of stainless steel electrode for fast reactor | |
| CN103898362A (en) | Zirconium-based alloy for water-cooled nuclear reactor | |
| CN110273085B (en) | Gadolinium-rich nickel-based alloy material for reactor spent fuel storage and preparation method thereof | |
| CN110373573B (en) | Gadolinium-rich nickel-tungsten-based alloy material for nuclear shielding and preparation method thereof | |
| CN102864338B (en) | Corrosion resistant zirconium-based alloy used for high burnup and preparation method thereof | |
| CN101935778A (en) | Zirconium-based alloy for nuclear reactors and preparation method thereof | |
| CN114457289A (en) | Tin-containing heat-resistant ferrite stainless steel alloy material for nuclear energy and preparation method thereof | |
| CN103898368A (en) | Zirconium-based alloy for nuclear fuel assembly | |
| CN102766778A (en) | Zircaloy for fuel cladding at nuclear power station | |
| CN111037153B (en) | E316H type welding rod for manufacturing fast neutron reactor equipment | |
| CN105296803B (en) | A kind of nuclear reactor fuel can zirconium-niobium alloy and preparation method thereof | |
| CN116288047A (en) | Gadolinium-enriched iron-nickel base alloy material with excellent hot workability for nuclear shielding and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |